Hydrologic soil group definition

Hydrologic soil group or "HSG" means a Natural Resource Conservation Service classification system in which soils are categorized into four runoff potential groups. The groups range from A soils, with high permeability and little runoff production, to D soils, which have low permeability rates and produce much more runoff.
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Hydrologic soil group means the classification system for soil erodability set out in Soil Survey — San Diego Area, California (December 1973), issued by the U.S. Department of Agriculture Soil Conservation Service and U.S. Forest Service. In this system soils are categorized into four runoff potential groups. The groups range from "A" soils, which have high permeability and little runoff production, to "D" soils, which have low permeability rates and produce much more runoff.
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Hydrologic soil group means a Natural Resource Conservation Service designation given to different soil types to reflect their relative surface permeability and infiltrative capability. Designations consist of four classifications (A, B, C, and D) grouped according to soil infiltration rates from high infiltration rates in Group A to very low infiltration rates in Group D.
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Examples of Hydrologic soil group in a sentence

  • Hydrologic soil group designations of A/D, B/D, and C/D should be considered as D soils for this application.

  • Hydrologic soil group (HSG) means a Natural Resource Conservation Service classification system in which soils are categorized into four runoff potential groups.

  • Hydrologic soil group B soils have moderate infiltration rates and are moderately well drained.

  • Deployment Testing focuses on ensuring that the Application Software can be installed correctly.

  • The 59 two-thirds of the genome encodes the non-structural (ns) polyprotein P1234.

  • Hydrologic soil group (HSG) areas are to be determined by using the current version of SURRGO or Web Soil Survey soils information.

  • Hydrologic soil group: C = slow infiltration rate/moderately high runoff potential; D = Very slow infiltration rate/high runoff potential.

  • Hydrologic soil group A is defined as soils having a high infiltration rate (low runoff potential) when thoroughly wet.

  • The runoff curve number based on LULC types in 2011 and hydrologic soil group for surface runoff estimation Source: Modified from USDA (1986)Note for Hydrologic soil group and soil texture: A Sand, loamy sand, or sandy loamB Silt loam or loamC Sandy clay loamD Clay loam, silty clay loam, sandy clay, silty clay, clay, siltsurface rainfall event using the kriging method.

  • Hydrologic soil group C accounts for 18% of the soils, while soil group D accounts for 14% of the soils in the watershed.


More Definitions of Hydrologic soil group

Hydrologic soil group means a group of soils having similar runoff.
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Hydrologic soil group means the designation of soils based on the National Engineering Handbook, Part 630, Chapter 7, Hydrologic Soil Groups, U.S. Department of Agriculture, National Resources Conservation Service, 2009 in which soils are categorized into four runoff potential groups, ranging from A soils, with high permeability and little runoff production, to D soils, which have low permeability rates and produce much more runoff.
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Hydrologic soil group means the soils grouped according to their runoff-producing characteristics. The four hydrologic groups are defined in Appendix A of TR-55 and Table 17 of the soil survey.
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